J/A+A/681/A49 Fe equivalent widths of BHLMXBs (Parra+, 2024)
The current state of disk wind observations in BHLMXBs through X-ray absorption
lines in the iron band.
Parra M., Petrucci P.-O., Bianchi S., Gianolli V.E., Ursini F., Ponti G.
<Astron. Astrophys., 681, A49 (2024)>
=2024A&A...681A..49P 2024A&A...681A..49P (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, X-ray ; Equivalent widths
Keywords: X-rays: binaries - accretion - accretion disks - stars: black holes -
stars: winds - outflows
Abstract:
The presence of blueshifted absorption lines in the X-ray spectra of
black hole low-mass X-ray binaries is the telltale mark of massive
outflows called winds. These signatures are found almost exclusively
in soft states of high-inclined systems, hinting at equatorial
ejections originating from the accretion disk and deeply intertwined
with the evolution of the outburst patterns displayed by these
systems. In the wake of the launch of the new generation of X-ray
spectrometers, studies of wind signatures remain mostly restricted to
single sources and outbursts, with some of the recent detections
departing from the commonly expected behaviors. We thus give an update
to the current state of iron band absorption line detections through
the analysis of all publicly available XMM-Newton-pn and Chandra-HETG
exposures of known black hole low-mass X-ray binary candidates. Our
results agree with previous studies, as our wind detections are
exclusively found in dipping, high-inclined sources and almost
exclusively in bright (LX>0.01LEdd) soft (HR<0.8) states with
blueshift values generally restricted to a few 100km/s. The line
parameters indicate similar properties between objects and outbursts
of single sources, and despite more than 20 yr of data, very few
sources have the HID sampling necessary to properly study the
evolution of the wind during a single outburst. We provide an online
tool with details of the wind signatures and outburst evolution data
for all sources in our sample.
Description:
Study of Fe XXV and Fe XXVI absorption lines in all publicly available
XMM-pn and Chandra-HETG observations of BHLMXB candidates
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
sources.dat 45 41 Studied sources
tablec1.dat 119 242 EW values for each line and each exposure
analyzed in the sample
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See also:
B/chandra : The Chandra Archive Log (CXC, 1999-2014)
B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2012-)
Byte-by-byte Description of file: sources.dat
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Bytes Format Units Label Explanations
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1- 21 A21 --- Source Source name
23- 24 I2 h RAh Simbad right ascension (J2000)
26- 27 I2 min RAm Simbad right ascension (J2000)
29- 33 F5.2 s RAs Simbad right ascension (J2000)
35 A1 --- DE- Simbad declination sign (J2000)
36- 37 I2 deg DEd Simbad declination (J2000)
39- 40 I2 arcmin DEm Simbad declination (J2000)
42- 45 F4.1 arcsec DEs Simbad declination (J2000)
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Byte-by-byte Description of file: tablec1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 21 A21 --- Source Source name
23- 32 A10 "date" Date Observation date
34- 40 A7 --- Inst Instrument
42- 56 A15 --- ObsID ObsID + identifier
57 A1 --- n_ObsID [+] + for ObsIDs that have pile-up values
between 5 and 7% after the data reduction
process
59- 64 F6.2 ks ExpTime Exposure time after data reduction
66- 67 A2 --- l_EWFeXXVKa [≤ ] 3σ upper limit flag on EWFeXXVKa
68- 69 I2 eV EWFeXXVKa ?=- FeXXV Kα equivalent width
70 A1 --- --- [+]
71- 72 I2 eV E_EWFeXXVKa ? FeXXV Kα equivalent width error
(upper value)
73 A1 --- --- [-]
74- 75 I2 eV e_EWFeXXVKa ? FeXXV Kα equivalent width error
(lower value)
77- 78 A2 --- l_EWFeXXVIKa [≤ ] 3σ upper limit flag on EWFeXXVIKa
79- 81 I3 eV EWFeXXVIKa ?=- FeXXVI Kα equivalent width
82 A1 --- --- [+]
83- 84 I2 eV E_EWFeXXVIKa ? FeXXVI Kα equivalent width error
(upper value)
85 A1 --- --- [-]
86 I1 eV e_EWFeXXVIKa ? FeXXVI Kα equivalent width error
(lower value)
89- 90 A2 --- l_EWFeXXVKb [≤ ] 3σ upper limit flag on EWFeXXVKb
91- 92 I2 eV EWFeXXVKb ?=- FeXXV Kβ equivalent width
93 A1 --- --- [+]
94- 95 I2 eV E_EWFeXXVKb ? FeXXV Kβ equivalent width error
(upper value)
96 A1 --- --- [-]
97- 98 I2 eV e_EWFeXXVKb ? FeXXV Kβ equivalent width error
(lower value)
100-101 A2 --- l_EWFeXXVIKb [≤ ] 3σ upper limit flag on EWFeXXVIKb
102-103 I2 eV EWFeXXVIKb ?=- FeXXVI Kβ equivalent width
104 A1 --- --- [+]
105-106 I2 eV E_EWFeXXVIKb ? FeXXVI Kβ equivalent width error
(upper value)
107 A1 --- --- [-]
108-109 I2 eV e_EWFeXXVIKb ? FeXXVI Kβ equivalent width error
(lower value)
111-112 A2 --- l_EWFeXXVIKg [≤ ] 3σ upper limit flag on EWFeXXVIKg
113-114 I2 eV EWFeXXVIKg ?=- FeXXVI Kγ equivalent width
115 A1 --- --- [+]
116-117 I2 eV E_EWFeXXVIKg ?=- FeXXVI Kγ equivalent width error
(upper value)
118 A1 --- --- [-]
119 I1 eV e_EWFeXXVIKg ?=- FeXXVI Kγ equivalent width error
(lower value)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 22-Apr-2024